Home / 288,584,838.24-398,236,407.28-156,422,997.12

Finding the Fourth Proportional to 288,584,838.24, 398,236,407.28 and 156,422,997.12

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Solution

The fourth proportional to 288,584,838.24, 398,236,407.28 and 156,422,997.12 is: 215,857,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,838.24 : 398,236,407.28 = 156,422,997.12 : x
  2. Step 2: Convert to fraction form
    288,584,838.24/398,236,407.28 = 156,422,997.12/x
  3. Step 3: Cross multiply
    288,584,838.24x = 398,236,407.28 × 156,422,997.12
  4. Step 4: Simplify right side
    288,584,838.24x = 62,293,332,389,038,584
  5. Step 5: Solve for x
    x = 62,293,332,389,038,584/288,584,838.24
  6. Step 6: Final answer
    x = 215,857,952.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.